Chapter 6 - Chemical Reactions

Front

What is a chemical reaction?

Back

A process where substances (reactants) are transformed into new substances (products) through the breaking and forming of chemical bonds.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means. Examples include hydrogen (H) and oxygen (O).

Front

What is a compound?

Back

A substance formed when two or more elements are chemically bonded together. Example: Water (H2O) is a compound made of hydrogen and oxygen.

Front

What is the chemical formula for water?

Back

H2O

Front

How many elements are in the compound C6H12O6?

Back

3 (Carbon, Hydrogen, and Oxygen)

Front

What is the difference between an element and a compound?

Back

An element is a single type of atom, while a compound consists of two or more different types of atoms chemically bonded together.

Front

What does the subscript in a chemical formula indicate?

Back

The number of atoms of the element in the molecule. For example, in H2O, the '2' indicates there are two hydrogen atoms.

Front

What is the chemical formula for oxygen gas?

Back

O2

Front

What is a reactant in a chemical reaction?

Back

A substance that is present at the start of a chemical reaction and is consumed during the reaction.

Front

What is a product in a chemical reaction?

Back

A substance that is formed as a result of a chemical reaction.